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No offense to Berg but I half agree with wherzamizat, maybe he could have been a little more but graceful.
First job with a jace and modbus? Why in the world is his boss sending him out there? If I was the customer I don't know if I'd be very happy about that.

So you've never worked on a controller the first time out in the field and had questions? BTW we are not customers, we are guys that have experience(some more than others), hence why he is asking this here. Look at post #7, I've known paulir since he was an ASI var, he has been a mentor, a teacher, and a friend and hes one of the best dam control guys I know in the U.S. Just like he is offering berg here, I met him on the ASI usergroup because he was always helping people. The first modbus job I ever did on a Carrier was 3 hours out of town, I had the software and the card got fragged, pauli worked me through the reprogramming of the card and getting the Modbus going, I wouldn't have ever pulled that job off without HIS help. Who else did my company have to send-NO ONE. The job works great, I ended up converting the whole site from Carrier Gen I stuff to ASI, its our biggest ASI job we ever done and we have more work there next week.

Again there has never been anything you have been trained on that you had to in the field for the first time?

Why in the world is his boss sending him?

Because obviously from his statements he has already started preparing and reading and hes getting ready to do his job-HES MOTIVATED. Look at my posts after I got my AX certification and be prepared for a question that is probably simple that I will be posting after this. The class teaches you how to use a Jace and how to set it up, there is nothing whatsoever that tells you how to do your first job, I had alot of the same questions, look at my AX questions in the pro forum.

Tearing a man down that is trying isn't worth a crap, we've all been there before

It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly; who errs, who comes short again and again, because there is no effort without error and shortcoming; but who does actually strive to do the deeds; who knows great enthusiasms, the great devotions; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who neither know victory nor defeat. - T.R.

kontrol out

"Open is as open does." - Forrest Gump"Can't we all just get a Lon?" - Garry Jack "BACnet: integration or interrogation?" - The Janitor"Open protocols? You can't handle open protocols!" - Nathan R. Jessup“What’s that? Aaa… open protocols? Don’t talk about…. open protocols? Are you kidding me? Open protocols? I just hope we can hardwire an interface!” - Jim Mora http://www.youtube.com/watch?v=U7fjDS0jKiE

Berg
Forgive me.
My comment was worded poorly and was not meant to tear you down.

On the surface I perceived you were asked to do something without the key details on how to get it done.

My apologies to you and for derailing the thread.

http://www.simplymodbus.ca/
Here is a link to a site I found very helpful when I started digging into modbus.
As paulir posted the hardest part with modbus for me was establishing communication with the first register and confirming it was configured correctly and then the rest goes quickly. What I did was find a register to map to that I could easily confirm a known value and once it was set up I was off and running.
As acddc posted the Loytec products have the modbus scanner that are very handy for just that.

Really dude? Berg has been around here for a long time, instead of a month like some others. We all have varying levels of experience and we have a great group of guys on this board that are more helpful than any group of controls guys that I have ever met. If you have nothing positive or helpful here to say-don't say it. Do all of us a favor and if your going to post snide remarks go back to ARP where the majority of your posts are.

He has learned nothing. Doing it for him is not learning. Looking back at his wonderful contributions to the forum, most of them say call tech support. This guy is probably a Trane or Johnson AX hack.

Berg
Forgive me.
My comment was worded poorly and was not meant to tear you down.

On the surface I perceived you were asked to do something without the key details on how to get it done.

My apologies to you and for derailing the thread.

http://www.simplymodbus.ca/
Here is a link to a site I found very helpful when I started digging into modbus.
As paulir posted the hardest part with modbus for me was establishing communication with the first register and confirming it was configured correctly and then the rest goes quickly. What I did was find a register to map to that I could easily confirm a known value and once it was set up I was off and running.
As acddc posted the Loytec products have the modbus scanner that are very handy for just that.

Again, my apologies for my first post.

No hard feelings there sir, thank you for your assistance I will now be browsing the suggested site for information.